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Kohlrausch Law

at 25 degree ...

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at 25 degree celsius the molar conductance at infinite dilution for HCl solution is 4.25*10-2 ohm- m2 mol- , while its specific conductanceis 382.5 ohm m- . if degree of dissociation is 90% , the molarity of the solution is

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Q. The specific conductance of a

0.01 M

solution of acetic acid at

298 K

1.65 \times 10^{- 4}

{o h m}^{- 1}

{c m}^{- 1}

. The molar conductance at infinite dilution for

H^{+}

{C H}_{3} C O O^{-}

349.1 {o h m}^{- 1}

{c m}^{2} {m o l}^{- 1}

40.9 {o h m}^{- 1}

{c m}^{2} {m o l}^{- 1}

respectively.
Calculate:

(i) Molar conductance of the solution.
(ii) Degree of dissociation of

{C H}_{3} C O O H

.
(iii) Dissociation constant for acetic acid.

25^{\circ} C

molar conductance of

0.1

molar aqueous solution of ammonium hydroxide is

9.52

{ohm}^{- 1} {cm}^{2} {mol}^{- 1}

and at infinite dilution its molar conductance is

238

{ohm}^{- 1} {cm}^{2} {mol}^{- 1}

. The percentage degree of dissociation of ammonium hydroxide at the same concentration and temperature is:
[1 Mark]

0.05 M

N H_{4} O H

solution offers the resistance of

50 o h m

to a conductivity cell at

298 K

. If the cell constant is

0.50 {c m}^{- 1}

and molar conductance of

N H_{4} O H

at infinite dilution is

471.4 {o h m}^{- 1} {c m}^{2} {m o l}^{- 1}

(i) Specific conductance
(ii) Molar conductance
(iii) Degree of dissociation

25^{\circ} C

molar conductance of 0.1 molar aqueous solution of an ammonium hydroxide is

9.54 o h m^{- 1} c m^{2} m o l^{- 1}

and at infinite dilution its molar conductance is

238 o h m^{- 1} c m^{2} m o l^{- 1}

. The degree of ionization of ammonium hydroxide at the same concentration and temperature is ?

25^{\circ} C

, molar coductance of 0.1 molar aqueous solution of ammonium hydroxide is

9.54

o h m^{- 1} c m^{2} m o l^{- 1}

and at infinite dilution its molar conductance is

238 o h m^{- 1} c m^{2} m o l^{- 1}

. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is:

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